Devices, systems, and methods for obtaining a tissue sample using a biopsy tool

  • US 10,390,806 B2
  • Filed: 03/20/2015
  • Issued: 08/27/2019
  • Est. Priority Date: 03/28/2014
  • Status: Active Grant
First Claim
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1. A biopsy assembly comprising:

  • a biopsy catheter having a proximal portion and a distal portion;

    a navigation catheter configured to receive the biopsy catheter for positioning the biopsy catheter adjacent target tissue;

    a coring component including;

    a distal portion formed of two or more distally extending spiral blades disposed radially around a longitudinal center of the coring component;

    a spiral slit defined between two spiral edges of two adjacent blades of the two or more distally extending blades; and

    a proximal portion being coupled to the distal portion of the biopsy catheter,wherein the two or more blades are configured to penetrate the target tissue and sever a tissue sample from the target tissue, andwherein the spiral slit is configured to enable movement of the two or more distally extending blades towards the longitudinal center of the coring component to reduce a diameter of the distal portion of the coring component when the coring component is retracted from the target tissue; and

    an anchor to anchor the biopsy catheter to the target tissue.

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